Chery Tiggo7 Pro Heater Radiator (Part No.: 301000820AA)

First of all, let's clarify its core function: The Chery Tiggo7 Pro heater radiator 301000820AA is not the main radiator of the engine. It is a key component for keeping the car warm and clearing foggy Windows. It is installed behind the dashboard and is part of the car's cooling system, but mainly focuses on the comfort inside the vehicle rather than the engine temperature. Imagine it as a small and compact heat exchanger, connected to the engine's coolant circuit. What is its main job? Use the remaining coolant heat from the engine to heat the air in the cabin, help remove fog from the windshield (and side Windows) in cold weather, and work with the air conditioning to balance the cabin temperature (even in mild weather). Without it, the heater of your Tiggo7 Pro will blow out cold air, and it will be very difficult for you to see through the foggy glass in winter.

This radiator is specially designed for Chery Tiggo7 pro. Please make sure to confirm the vehicle's VIN! Its size matches the internal space of the dashboard (without squeezing or adjustment), its coolant inlet and outlet ports are consistent with the cooling hoses of the Tiggo7 Pro (without leakage), and its heat output matches the size of the car's cab (quick and uniform heating). Ordinary radiator? You will encounter some problems: it will leak coolant (damaging the dashboard), generate too little heat (making the interior cold), or obstruct the airflow (unable to defog) - all of which will undermine the comfort of winter driving.

Core work: Warmth and visibility

Its function is to keep you comfortable and safe in cold weather - here are the three key tasks it does for your Tiggo7 Pro:

Heating the cabin air: When you turn on the heater, hot coolant flows through the internal pipes of the radiator from the engine. The blower pushes air over the warm surface of the radiator, and the heated air is blown into the cabin (through the vents) to increase the temperature.

Defogging/defrosting Windows: When the warm and humid air inside the cabin hits the cold Windows, the Windows will fog up. The hot air from the radiator will dry out this moisture - either directly towards the windshield (defrosting) or circulating within the cabin (defogging) - so that you can see clearly.

In mild weather (such as 10-15°C), it is used in conjunction with an air conditioner to mix warm and cold air. This keeps the cabin at a comfortable temperature without being blown too hot or too cold.

• Fits These Models: All Chery Tiggo7 Pro variants (matches cooling system specs, dashboard space, and hose sizes—confirm via VIN).

• Won’t Fit These:

• Other Chery models (e.g., S5, A13): Their dashboard size, coolant hose layout, and cabin volume differ—radiator won’t fit or heat properly.

• Non-Chery vehicles: Even if ports “match,” the radiator’s size and heat output are wrong (cold cabin or blocked airflow).

Installation & Maintenance (Pros Recommended—Coolant Risks!)

Installation: Certified Chery Technicians Preferred

1. Drain coolant safely: Technicians drain a small amount of engine coolant (to avoid spills) and disconnect the hoses from the old radiator.

2. Remove old unit: They carefully take apart the dashboard’s lower trim (to access the radiator), unbolt the old unit, and pull it out.

3. Mount new radiator: They position 301000820AA, secure it with brackets, reconnect the coolant hoses (check for leaks), and refill the coolant.

4. Test function: They start the engine, turn on the heater, and check for hot air flow and no leaks—ensuring defog works too.

Maintenance: Keep It Heating Well

• Check coolant level monthly: Low coolant means less heat reaches the radiator (cold air). Top up with Chery-recommended coolant if needed.

• Clean fins yearly: Use compressed air to blow dust out of the fins (clogged fins reduce heat transfer—slower warming).

• Inspect for leaks: Look under the dashboard (or check coolant levels) for drops—leaks mean a faulty seal (fix fast to avoid dashboard damage).

• Flush coolant every 2 years: Old coolant gets dirty and reduces heat transfer—flushing keeps the radiator working efficiently.

Summary: Chery Tiggo7 Pro Heater Radiator (301000820AA)

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